// The MIT License (MIT)
// 
// Copyright (c) 2015-2025 Rasmus Mikkelsen
// https://github.com/eventflow/EventFlow
// 
// Permission is hereby granted, free of charge, to any person obtaining a copy of
// this software and associated documentation files (the "Software"), to deal in
// the Software without restriction, including without limitation the rights to
// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
// the Software, and to permit persons to whom the Software is furnished to do so,
// subject to the following conditions:
// 
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
// FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
// COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
// IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
// CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

namespace EventFlow.ReadStores
{
    public abstract class ReadModelUpdateResult
    {
        public bool IsModified { get; }

        protected ReadModelUpdateResult(
            bool isModified)
        {
            IsModified = isModified;
        }
    }
    
    public class ReadModelUpdateResult<TReadModel> : ReadModelUpdateResult
        where TReadModel : class, IReadModel
    {
        public ReadModelEnvelope<TReadModel> Envelope { get; }

        private ReadModelUpdateResult(
            ReadModelEnvelope<TReadModel> envelope,
            bool isModified)
            : base(isModified)
        {
            Envelope = envelope;
        }

        public static ReadModelUpdateResult<TReadModel> With(
            ReadModelEnvelope<TReadModel> readModelEnvelope,
            bool isModified)
        {
            return new ReadModelUpdateResult<TReadModel>(
                readModelEnvelope,
                isModified);
        }

        public static ReadModelUpdateResult<TReadModel> With(
            string readModelId,
            TReadModel readModel,
            long? version)
        {
            return new ReadModelUpdateResult<TReadModel>(
                ReadModelEnvelope<TReadModel>.With(readModelId, readModel, version),
                true);
        }
    }
}